Rod, Piston And Connecting: Installation
WARNING: This page is about a different car, the 2020 Chrysler 300 and 2019 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Before reinstalling used rings or installing new rings, the ring clearances must be checked.
NOTE:
Make sure the piston ring grooves are clean and free of nicks and burrs.
- Check piston ring clearance. Refer to ENGINE/ENGINE BLOCK/RING(S), PISTON - STANDARD PROCEDURE .
- Before installing piston and connecting rod assemblies into the bore, install the piston rings. Refer to ENGINE/ENGINE BLOCK/RING(S), PISTON - STANDARD PROCEDURE .
- Immerse the piston head and rings in clean engine oil and position a ring compressor over the piston and rings and tighten the ring compressor. Ensure the position of rings do not change during this operation.
- Position the rod bearing (1) onto the connecting rod and lubricate bearing surface with clean engine oil.
- Install Connecting Rod Guides (special tool #8507, Guides, Connecting Rod) (1) into the connecting rod bolt threads.
- The pistons are marked on the piston pin bore surface with a raised "F" or arrow on top of piston indicating installation position. This mark must be pointing toward the front of engine on both cylinder banks.
- Wipe cylinder bore clean and lubricate with clean engine oil.
- Rotate the crankshaft until the connecting rod journal is centered with the cylinder bore.
- Insert the piston and rod assembly into the cylinder bore and carefully position the connecting rod over the crankshaft journal.
- Tap the piston down into the cylinder bore using a hammer handle while guiding the connecting rod into position on the rod journal.
- Remove the Connecting Rod Guides (special tool #8507, Guides, Connecting Rod).
- Wipe the connecting rod cap (1) clean and lubricate with clean engine oil and install the bearing (3).NOTE:
The connecting rods and bearing caps are not interchangeable, line up the previously marked bearing caps and connecting rods to ensure assembly to their original location.
- Lubricate the bearing surfaces with clean engine oil and position the rod cap in place.NOTE:
When installing the connecting rods, make sure the wide side (1) of the connecting rod faces the crankshaft and the narrow sides (2) face each other.
CAUTION:Always replace the connecting rod bolts whenever they are loosened or removed.
- Lubricate the NEW rod cap bolts with clean engine oil, install and tighten to the proper torque specification. Refer to TORQUE SPECIFICATIONS .
- Install the new oil pan gasket/windage tray and oil pan. Refer to PAN, OIL, INSTALLATION .
- Install the cylinder head(s). Refer to CYLINDER HEAD, INSTALLATION .
- Connect the negative battery cable.